Maybe you’re right, but I remember than in the 2000s I’ve had identical cpu heatsinks in both copper/aluminum versions, and the aluminum one had better performance.
And then they started to make hybrid ones, stating that the copper part was to allow rapid heat transference and the aluminum parts to improve dissipation. But maybe it was all marketing.
Copper has more mass, heat capacity, and thermal conductivity per litre.
Is aluminium actually more effective as a dissipation surface? I hadn’t heard that.
Copper is better conductor but it’s worse at dissipation. Do the experience yourself, heat a block of each and then touch them afterwards.
Is that not because the copper holds more heat, so stays hot for longer at the same dissipation?
Maybe you’re right, but I remember than in the 2000s I’ve had identical cpu heatsinks in both copper/aluminum versions, and the aluminum one had better performance. And then they started to make hybrid ones, stating that the copper part was to allow rapid heat transference and the aluminum parts to improve dissipation. But maybe it was all marketing.
Aluminium is significantly cheaper, that’s why they make coolers with a copper base and alu fins. It’s a good compromise.